M-D Shrink & Seal Clear Indoor Patio Door Insulator Kit 84 in. W x 110 in. L - 5684527
Crystal clear film for use on interior windows to reduce cold air drafts. Improves the insulating R-value of windows up to 90 percent. Easy to install with tape and hair dryer. Clear film shrinks tight and wrinkle free to prevent cold drafts and heat loss through window panes.